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Cr2O3-doped BaTiO3 as an Ammonia Gas Sensor

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New Developments and Applications in Sensing Technology

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 83))

Abstract

The thick films of pure BaTiO3 (BT) were prepared by screen-printing technique. The gas sensing performances of these films were tested to various gases by using static gas sensing system at various operating temperatures. The pure film showed maximum response to H2S gas at 350oC but poor selectivity. Different wt% of Cr (0.56, 5.27 and 6.07) was added in BaTiO3, base material, followed by sintering at 550oC for 30min. The thick films of such powder were prepared by screen-printing technique. The thick films of this Cr-doped BT were prepared and tested to various gases. The Cr2O3-doped BT film (5.27wt %) showed maximum response to ammonia gas at 350oC and suppresses the response to H2S gas. The response of 5.27wt% film was observed to be the most amongst the 0.56 and 6.07wt.The selectivity of the Cr2O3-doped BT was found to be more against the other gases. The 90% response and recovery levels were attained within 3 and 20 s, respectively for Cr2O3-doped BT (5.27wt %) film. The very short response and recovery time are the important features of this Cr2O3-doped BT film to NH3 gas.

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Authors and Affiliations

  1. Materials Research Lab., Arts, Commerce and Science College, Nandgaon, 423 106, India

    Gotan H. Jain, D. D. Kajale & G. E. Patil

  2. G.M.D. Arts, B.W. Commerce and Science College, Sinnar, India

    S. B. Nahire

  3. Materials Research Lab., K.T.H.M. College, Nashik, 422 005, India

    S. D. Shinde & V. B. Gaikwad

  4. Department of Chemistry, Arts Commerce and Science College, Lasalgaon, 422 306, India

    D. N. Chavan

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  1. Gotan H. Jain
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  4. G. E. Patil
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Editors and Affiliations

  1. School of Engineering and Advanced Technology (SEAT), Massey University (Manawatu Campus) , Palmerston North, New Zealand

    Subhas Chandra Mukhopadhyay

  2. Dipartimento d’Ingegneria dell’innovazione, University of Salento , Lecce, Italy

    Aimé Lay-Ekuakille

  3. Institute of Electrical Measurement and Measurement Signal Processing, Graz University of Technology , Graz, Austria

    Anton Fuchs

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Jain, G.H. et al. (2011). Cr2O3-doped BaTiO3 as an Ammonia Gas Sensor. In: Mukhopadhyay, S.C., Lay-Ekuakille, A., Fuchs, A. (eds) New Developments and Applications in Sensing Technology. Lecture Notes in Electrical Engineering, vol 83. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17943-3_8

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  • DOI: https://doi.org/10.1007/978-3-642-17943-3_8

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-17942-6

  • Online ISBN: 978-3-642-17943-3

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